CN113859362B

CN113859362B - Chassis structure and vehicle

Info

Publication number: CN113859362B
Application number: CN202111050523.3A
Authority: CN
Inventors: 侯建勇; 张海莉; 谢涛
Original assignee: Evergrande New Energy Automobile Investment Holding Group Co Ltd
Current assignee: Evergrande New Energy Automobile Investment Holding Group Co Ltd
Priority date: 2021-09-08
Filing date: 2021-09-08
Publication date: 2022-06-28
Anticipated expiration: 2041-09-08
Also published as: CN113859362A

Abstract

The invention relates to the field of vehicle parts, and discloses a chassis structure and a vehicle, wherein the chassis structure comprises an auxiliary frame (1), a swing arm (2), a driving piece (10) and a driving piece, and the driving piece (10) can drive the auxiliary frame (1) to vertically move upwards relative to the swing arm (2) through the driving piece. In this scheme, when the vehicle will receive the side collision, rise through driving piece drive sub vehicle frame, can be so that the automobile body slope to regard the automobile body longeron as the collision point, can avoid or alleviate the deformation of automobile body, protect the passenger in the car better, improved the security of driving a vehicle.

Description

Chassis structure and vehicle

Technical Field

The present invention relates to the field of vehicle components, in particular to a chassis structure, and to a vehicle.

Background

With the development of automobile technology and the wide application of automobile products, the requirement of users on the collision safety of automobiles is higher and higher.

In the prior art, during side collision of most automobiles, the deformation of a chassis is small, the main contact point of the side collision is an automobile door system, the strength of an automobile door is small, the automobile body is easy to deform, and the injury to passengers is large.

Disclosure of Invention

The invention aims to provide a chassis structure to solve the problem that a vehicle body is easy to deform in a side collision.

In order to achieve the above object, the present invention provides an undercarriage structure, wherein the undercarriage structure includes a subframe, a swing arm, a driving element and a transmission element, and the driving element can drive the subframe to move vertically upward relative to the swing arm through the transmission element.

Optionally, the driving member is disposed on one of the subframe and the swing arm, and the transmission member is drivingly connected to the driving member and the other of the subframe and the swing arm.

Optionally, the driving member is a torque driving member, the driving member includes a transmission shaft, a gear connected to one end of the transmission shaft, and a tooth member engaged with the gear, the tooth member is disposed on the other one of the sub-frame and the swing arm and extends in a vertical direction, and the driving member can drive the tooth member to move in the vertical direction.

Optionally, the driving member is a motor.

Optionally, the driving member is disposed on the subframe, and the tooth condition is disposed on the swing arm.

Optionally, the transmission comprises a clutch located between the drive member and the drive shaft.

Optionally, the clutch is an electromagnetic clutch.

Optionally, the swing arm is hinged to the sub-frame through a hinge shaft.

Optionally, the chassis structure includes a knuckle connected to the swing arm, and a damper connected to the knuckle, and the damper is connected to the subframe through a stabilizer bar and a stabilizer link.

In addition, the invention also provides a vehicle, wherein the vehicle is provided with the chassis structure in the scheme.

In this scheme, when the vehicle will receive the side collision, rise through driving piece drive sub vehicle frame, can be so that the automobile body slope to regard the automobile body longeron as the collision point, can avoid or alleviate the deformation of automobile body, protect the passenger in the car better, improved the security of driving a vehicle.

Drawings

FIG. 1 is a perspective view of a chassis structure according to an embodiment of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is an exploded view of FIG. 2;

FIG. 4 is a perspective view of a subframe and drive member according to an embodiment of the present invention;

FIG. 5 is a bitmap of a subframe according to an embodiment of the present invention;

FIG. 6 is a perspective view of a drive member according to an embodiment of the present invention;

fig. 7 is a perspective view of a swing arm and tooth arrangement in accordance with an embodiment of the present invention.

Description of the reference numerals

1-auxiliary frame, 2-swing arm, 3-stabilizer bar, 4-stabilizer bar connecting rod, 5-shock absorber, 6-gear, 7-tooth condition, 8-transmission shaft, 9-clutch, 10-driving piece, 11-mounting hole, 12-avoiding part, 101-mounting seat and 102-through hole.

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

In the present invention, the use of directional terms such as "up and down" generally refers to the relative positions of the vehicle in the use state, unless otherwise specified.

The invention provides a chassis structure, which comprises an auxiliary frame 1, a swing arm 2, a driving piece 10 and a transmission piece, wherein the driving piece 10 can drive the auxiliary frame 1 to vertically move upwards relative to the swing arm 2 through the transmission piece.

The subframe 1 is a support structure of a vehicle body, and the vehicle body may be disposed on the subframe 1.

Swing arm 2 is located sub vehicle frame 1's both sides, and swing arm 2 can connect in the knuckle, realizes sub vehicle frame 1 and wheel and knuckle's being connected.

The driving member 10 is a component capable of outputting mechanical energy, and chemical energy, electric energy and hydraulic energy can be used as energy sources.

The transmission can transmit the mechanical energy output by the driving element 10 between the subframe 1 and the swing arm 2 to realize the relative motion of the subframe and the swing arm 2.

When a control part of the vehicle, such as an ECU (electronic control Unit), judges that the vehicle is about to suffer from a side collision, the driving part 10 can be controlled to operate, so that the side, to be collided, of the subframe 1 is driven by the driving part 10 to vertically move upwards relative to the swing arm 2, the height of the side, supported by the subframe 1, of the vehicle body can be increased, the vehicle body is in an inclined state, a vehicle body longitudinal beam protrudes relative to other parts towards a collision object, other parts are relatively retracted, a contact point of the side collision is changed into the vehicle body longitudinal beam with higher structural strength, the deformation caused by the side collision can be avoided or relieved, and the collision safety performance is improved.

With respect to the movement of the subframe 1 relative to the swing arm 2, it may include movements in a plurality of directions, for example, a front-back direction and a left-right direction, not only a vertical direction.

The activation of the driver 10 may be in response to an ECU signal or the driver may manually operate the vehicle control system in response to an ECU signal to control the activation of the driver 10.

Wherein, the driving element 10 is arranged on one of the auxiliary frame 1 and the swing arm 2, and the driving element is in transmission connection with the driving element 10 and the other of the auxiliary frame 1 and the swing arm 2. The driving member 10 can be fixed relative to one of the subframe 1 and the swing arm 2, so that the other can be driven by the driving member to move, and relative movement of the subframe 1 and the swing arm 2 can be realized, wherein, as the swing arm 2 is connected to the steering knuckle and the wheel, under the supporting action of the ground on the wheel, the subframe 1 can move upwards relative to the swing arm 2 and the ground, and accordingly, the vehicle body supported by the subframe 1 is inclined relative to the ground.

Specifically, driving piece 10 is the torque drive spare, the driving medium includes transmission shaft 8, connect in the gear 6 of transmission shaft 8 one end and with the rack spare 7 of gear 6 meshing, tooth condition 7 sets up sub vehicle frame 1 with extend vertical direction and extend on another of swing arm 2, driving piece 10 can drive tooth condition 7 moves along vertical direction. The drive member 10 can output a torque, as shown in fig. 2 and 3, the drive shaft 8 is connected to a coaxial gear 6, and the gear 6 can mesh with a linear toothing on the rack member 7. The driving part 10 drives the transmission shaft 8 and the gear 6 to rotate, and the rack member 7 moves under the action of the gear 6, so that the connected auxiliary frame 1 or the swing arm 2 is driven to move.

Wherein the driving member 10 is a motor. The torque driving part can be in the forms of a hydraulic motor, a fuel engine, a motor and the like, has relatively small space for a chassis structure, is more suitable for the motor with relatively simple structure, and is more convenient for electric power transmission.

In other embodiments, the driver 10 may also be a non-torque driver, such as an air cylinder, oil cylinder, electric cylinder, or the like. The driving medium also can be lever structure, and driving piece and sub vehicle frame 1 and swing arm 2's one are connected respectively to the both ends of lever to can be around the fulcrum (be located sub vehicle frame 1 or swing arm 2 on) drive sub vehicle frame 1 and swing arm 2 relative movement.

Alternatively, the driving member 10 is disposed on the subframe 1, and the rack member 7 is disposed on the swing arm 2. As shown in fig. 4, the driving member 10 can be mounted on the subframe 1, and as shown in fig. 5, the subframe 1 is provided with a mounting hole 11 and a recessed escape portion 12; as shown in fig. 6, the driving member 10 includes two mounting plates, which are provided with through holes 102, the driving member 10 can be disposed at the avoidance portion 12, and the subframe 1 is clamped by the two mounting plates, and the through holes 102 on the mounting plates cooperate with the mounting holes 11 to mount the driving member 10 on the subframe 1. As shown in fig. 7, the rack member 7 may be clamped to the swing arm 2 by a mounting plate and may be bolted or otherwise coupled to and held in engagement with the gear 6 on the drive shaft 8. The driving member 10 is disposed on the subframe 1 so as to provide a power source for the vehicle body through a power device of the vehicle body.

In addition, the transmission comprises a clutch 9 between the drive element 10 and the transmission shaft 8. The clutch 9 can realize the connection or disconnection of the transmission between the driver 10 and the transmission shaft 8, and can connect the driver 10 and the transmission shaft 8 according to requirements. The clutch 9 may be automatically controlled by the ECU, i.e. when a side impact is predicted, such that the clutch 9 communicates with the driver 10 and the propeller shaft 8, although the vehicle control system may be manually operated to control the clutch 9.

Further, the clutch 9 is an electromagnetic clutch. The clutch 9 can be driven by electric power to realize clutch action, and the driving piece 10 and the clutch 9 can transmit electric power through the same line.

As shown in fig. 6, a mounting seat 101 is provided on the driver 10, and the clutch 9 may be provided in the mounting seat 101.

In addition, the swing arm 2 is hinged to the subframe 1 through a hinge shaft. The articulated shaft can roughly extend along fore-and-aft direction, and swing arm 2 and sub vehicle frame 1 can rotate relatively around the articulated shaft, can realize on the one hand the sub vehicle frame 1 with swing arm 2 connected between the wheel buffering, on the other hand, can rise through drive sub vehicle frame 1 of driving 10 drive to deal with the side collision.

In addition, the chassis structure includes a knuckle connected to the swing arm 2, and a damper 5 connected to the knuckle, and the damper 5 is connected to the subframe 1 through a stabilizer bar 3 and a stabilizer link 4. A steering knuckle (not shown in fig. 1) can rotate relative to the swing arm 2 to achieve steering, and wheels (not marked) can be connected to the steering knuckle; the shock absorber 5 is connected between the steering knuckle and the vehicle body, so that the buffer between the wheels and the vehicle body is realized; as shown in fig. 1, the damper 5 is connected to the subframe 1 via the stabilizer bar 3 and the stabilizer link 4, and stability between the damper 5 and the subframe 1 is improved.

In addition, the invention also provides a vehicle, wherein the vehicle is provided with the chassis structure in the scheme. The chassis structure can support the automobile body, through the relative movement of sub vehicle frame 1 and swing arm 2, can realize the slope of automobile body for the automobile body longeron avoids or alleviates the automobile body and warp as the stress point of side impact, has improved the security performance.

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, numerous simple modifications can be made to the technical solution of the invention, including combinations of the individual specific technical features in any suitable way. The invention is not described in detail in order to avoid unnecessary repetition. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.

Claims

1. The chassis structure is characterized by comprising an auxiliary frame (1), a swing arm (2), a driving piece (10) and a driving piece, wherein the driving piece (10) can drive the auxiliary frame (1) to vertically move upwards relative to the swing arm (2) through the driving piece.

2. Chassis arrangement according to claim 1, characterized in that a drive element (10) is provided on one of the subframe (1) and the swing arm (2), which drive element is drivingly connected to the drive element (10) and the other of the subframe (1) and the swing arm (2).

3. An undercarriage structure according to claim 2 wherein the drive member (10) is a torque drive member comprising a drive shaft (8), a gear (6) connected to one end of the drive shaft (8) and a toothed member (7) engaging the gear (6), the toothed member (7) being arranged on the other of the subframe (1) and the swing arm (2) and extending in a vertical direction, the drive member (10) being capable of driving the toothed member (7) in a vertical direction.

4. Chassis structure according to claim 3, characterized in that the drive member (10) is an electric motor.

5. Chassis structure according to claim 4, characterized in that said drive (10) is arranged on said subframe (1) and said tooth bar (7) is arranged on said swing arm (2).

6. An undercarriage structure according to claim 3 wherein the transmission comprises a clutch (9) between the drive member (10) and the drive shaft (8).

7. Chassis structure according to claim 6, characterized in that the clutch (9) is an electromagnetic clutch.

8. The chassis structure according to claim 1, characterized in that said swing arm (2) is hinged to said subframe (1) by means of a hinge axis.

9. The chassis structure according to claim 1, characterized in that it comprises a knuckle connected to the swing arm (2), a shock absorber (5) connected to the knuckle, the shock absorber (5) being connected to the subframe (1) by a stabilizer bar and a stabilizer link.

10. A vehicle, characterized in that the vehicle is provided with a chassis structure according to any one of claims 1-9.